Help with SPS Flow

[BigMike75]

I am setting up a 90 to grow out sps frags for a upgrade next year to a 180. I am wanting to see which is the best option to go about flow in the 90. Right now I am running a MP40 at 100% and 2 K3s at opposite of MP40 and 1 on back glass. I am thinking about buying another MP40 and taking out 1 of the K3s. In this setup I would have a MP40 on each end of the tank that I could run at a lower level and have 1 K3 on the back glass to get water flow from behind my LR. I would be using both MP40 when I upgraded to the 180 anyway.

Any help is greatly appreciated. What does most people run there vortechs on?

 

[BigMike75]

Any thoughts?

 

[ifarmer]

that is a lot of rocks.
try to create some room in the back for flow

 

[BigMike75]

I am going to have a long frag rack attached to the front glass. The rock really isn't that deep if looked at from the side just mainly in there to color up.

 

[powder_blue]

I just tore down that exact tank. I ran an mp40 on each end. Mostly 70-80% in reef crest. About 4 in down from top